About the Number

13640

13639 ← → 13641

2進数表記:11010101001000

漢数字表記:一万三千六百四十

素因数分解:

2 3 × 5 1 × 11 1 × 31 1

素因数の和:53
約数の個数: 32
約数和(自身を含む): 34560
約数和(自身を除く): 20920

約数列:
[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640]

約数ペア:
[(1, 13640), (2, 6820), (4, 3410), (5, 2728), (8, 1705), (10, 1364), (11, 1240), (20, 682), (22, 620), (31, 440), (40, 341), (44, 310), (55, 248), (62, 220), (88, 155), (110, 124)]

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